1. Burner, D. (1978). Programming in the meta-language: a tutorial. Lecture Notes in Computer Science, 61, 24–217.
2. Hewitt, C. and H. Baker (1978). Actors and continuous functionals. In E. J. Neuhold (Ed.), Formal Description of Programming Concepts. North-Holland, Amsterdam, New York, Oxford, pp. 367–387.
3. Keller, R. M. (1978). Denotational models for parallel programs with indeterminate operators. In E. J. Neuhold (Ed.), Formal Description of Programming Concepts. North-Holland, Amsterdam, New York, Oxford, pp. 337–366.
4. Kotov, V. E. (1980). On Basic Parallel Language. Proceedings of IFIP Congress 80, Tokyo, Melbourne, pp. 229 – 240.
5. Melnikov, G. P. (1978). Systemology and Language Aspects of Cibernetics. Sovetskoe Radio, Moscow, (in Russian).